I have been using ResMed AirSense 10 since Oct 2020. It has been successful in reducing OSA but I have centrals that have either emergered or have been uncovered.
I have noticed a general pattern has emerged (virtually all events are central):
Night 1: AHI below 5
Night 2: AHI between 7-9
Night 3: AHI between 12-15
Night 4: AHI between 15-19
....repeat...
The last two night my AHI was 23 and 28 almost all being unobstructed apneas... those are hopefully an anomaly? Typically tonight would be below or around AHI 5.
My RT set me on a constant pressure 10 in Dec 2020 to try to reduce the centrals I can't say it made much difference. I have not felt the benefit of CPAP since starting although when AHI is below 5 I do wake more refreshed- I know when the numbers are low or high now before looking. It hasn't translated into sustained daytime energy as I was hoping...
My RT is sending me home with an oximeter to see if O2 sats are following- my luck it will be one of my good AHI nights! My Level 3 study last year showed AHI over 40 but not much in the way of O2 desats.
No known cardiac issues- No pain meds. No history of seizure/ or other brain issues.
Is this pattern of "sawtooth" AHI centrals rising then falling familiar to anyone? Does anyone have any advice on what to discuss next with my RT?
Attached is screenshot of last night AHI and a more typical night of AHI 7 from a few nights ago.
Cheers
JPW